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Seven precautions for use of LNG storage tanks
Date: Nov 12, 2019
Liquefied natural gas storage tanks (also known as LNG storage tanks) are specialized commodities for storing liquefied natural gas, special equipment, three types of pressure vessels, 06Ni9DR data, through flaw detection, water pressure and air pressure experiments, on-site inspection by the Skills Supervision Bureau, and issued a pressure vessel inspection certificate. Skills such as external rust paint are completed. Below Henan JianShen Metal Materials Co., Ltd. to introduce the precautions for the use of LNG storage tanks, as follows:
1. LNG storage tanks cannot be transported with liquid. When used for a long time, the LNG liquid in the tank should be discharged.
2. LNG storage tanks with double root valves, valves close to the storage tanks should be opened normally.
3. When unloading the vehicle, it is claimed that the limit filling capacity of the LNG storage tank is not more than 90% of the useful volume (the manufacturer gives 85%-95% of the geometric volume), and the remaining amount cannot be less than 10%.
4. LNG storage tanks have a large amount of long-term “sweating” or frosting, and when the pressure is rising rapidly, the vacuum failure should be considered. The emergency treatment should be carried out, and the LNG liquid in the tank should be handled manually.
5. When the pressure of LNG storage tank is high, there is a problem with LNG storage tanks. The heat leakage and liquid storage time of all systems should be considered. Usually, when the pressure exceeds 1.1MPa, discharge pressure relief is required. LNG storage tanks have long-term The high pressure condition affects the life of the tank sandwich vacuum.
6. It is best to carry out vacuum inspection every other year for LNG storage tanks. When the LNG storage tank is a hot tank, the vacuum degree is less than 1 Pa, and when the LNG storage tank is a cold tank, the vacuum degree is less than 0.5 Pa (0.00375 TOF).
7. LNG storage tanks are pressure vessel equipment, which can be manufactured only by the unit with relevant certificates. Henan JianShen Metal Materials Co., Ltd. has the corresponding qualification certificate, which can bring high quality pressure vessel products to customers.
1. LNG storage tanks cannot be transported with liquid. When used for a long time, the LNG liquid in the tank should be discharged.
2. LNG storage tanks with double root valves, valves close to the storage tanks should be opened normally.
3. When unloading the vehicle, it is claimed that the limit filling capacity of the LNG storage tank is not more than 90% of the useful volume (the manufacturer gives 85%-95% of the geometric volume), and the remaining amount cannot be less than 10%.
4. LNG storage tanks have a large amount of long-term “sweating” or frosting, and when the pressure is rising rapidly, the vacuum failure should be considered. The emergency treatment should be carried out, and the LNG liquid in the tank should be handled manually.
5. When the pressure of LNG storage tank is high, there is a problem with LNG storage tanks. The heat leakage and liquid storage time of all systems should be considered. Usually, when the pressure exceeds 1.1MPa, discharge pressure relief is required. LNG storage tanks have long-term The high pressure condition affects the life of the tank sandwich vacuum.
6. It is best to carry out vacuum inspection every other year for LNG storage tanks. When the LNG storage tank is a hot tank, the vacuum degree is less than 1 Pa, and when the LNG storage tank is a cold tank, the vacuum degree is less than 0.5 Pa (0.00375 TOF).
7. LNG storage tanks are pressure vessel equipment, which can be manufactured only by the unit with relevant certificates. Henan JianShen Metal Materials Co., Ltd. has the corresponding qualification certificate, which can bring high quality pressure vessel products to customers.
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